Contains 22 genera and 44 accepted taxa overall.
This family is completely databased for all specimens.
Characteristics
BRASSICACEAE
Dicot
-
Classification
BRASSICALES
BRASSICACEAE
Genera
| Genus | Common Name | Taxa Count | Herbarium Specimens | Photos |
|---|---|---|---|---|
| Abdra | 1 | |||
| Boechera | ROCKCRESS | 1 | ||
| Brassica | MUSTARD | 4 | ||
| Cakile | SEAROCKET | 2 | ||
| Capsella | CAPSELLA | 1 | ||
| Cardamine | BITTERCRESS | 5 | ||
| Conringia | HARE'S EAR MUSTARS | 1 | ||
| Descurainia | TANSYMUSTARD | 1 | ||
| Diplotaxis | WALLROCKET | 2 | ||
| Erucastrum | DOGMUSTARD | 1 | ||
| Erysimum | WALLFLOWER | 1 | ||
| Lepidium | PEPPERWEED | 4 | ||
| Lobularia | LOBULARIA | 1 | ||
| Nasturtium | WATERCRESS | 2 | ||
| Planodes | WINGED ROCKCRESS | 1 | ||
| Raphanus | RADISH | 2 | ||
| Rorippa | YELLOWCRESS | 4 | ||
| Sinapis | MUSTARD | 1 | ||
| Sisymbrium | HEDGEMUSTARD | 3 | ||
| Thlaspi | PENNYCRESS | 1 | ||
| Tomostima | 1 | |||
| Warea | PINELANDCRESS | 4 |
Identification Key
1. Petals (4)5-25 mm long
2
1. Petals 0-5.5 mm long, or absent
15
2. Petals white to pink or purple
3
2. Petals pale yellow to yellow
10
3. All leaf blades simple and entire (if sinuate then cordate-clasping)
4
3. At least some (especially more basal) leaf blades lobed (sometimes obscurely), compound, pinnatisect, or toothed to sinuate
5
4. Stamens (at least some) included; ovary/fruit sessile (without a distinct gynophore) on the pedicel
4. Stamens exserted; ovary/fruit stipitate on distinct gynophores, distinct from the subtending pedicel
5. Cauline leaves palmately compound or the blade palmately lobed with deep sinuses
5. Cauline leaves simple and unlobed or pinnately compound, pinnately lobed, to pinnatisect
6
6. Petals 15-25 mm long, the veins often conspicuously discolorous and darker than the rest of the petal
6. Petals 5-12(16) mm long, the veins inconspicuous to slightly discolorous from the rest of the petals
7
7. Fruit terete
8
7. Fruit flattened
9
8. Fruit 2-segmented with a transverse fragmentation into an apical and a basal fragment; primarily of maritime habitats
8. Fruit not fragmenting transversely into 2 segments; primarily of disturbed sites
9. Leaves obscurely lobed, toothed, to sinuate
9. Leaves pinnatisect or pinnately lobed
10. Fruit truncate at tip, scarcely if at all tapered
10. Fruit tapered at tip to a persistent style base
11
11. Lower flowers/fruits each subtended by a leaf or leafy bract
11. Lower flowers/fruits usually ebracteate or, rarely, proximalmost 1 or 2 flowers bracteate
12
12. Plant often hispid or scabrous; petal veins often conspicuously discolorous and darker than the rest of the petal; fruit with subtle veins between the seeds
12. Plant glabrous to hispid; petal veins inconspicuous to slightly discolorous from the rest of the petals; fruit with subtle to strong primary venation
13
13. Fruit valves 3-veined
13. Fruit longitudinally 1-veined
14
14. Sepals usually erect or ascending, rarely spreading; seeds in 1 row per locule
14. Sepals usually ascending to spreading; seeds in 2 rows per locule
15. Fruit 0.5-1.5 as long as wide, the fruit septum parallel or contiguous with the gynophore or pedicel (angustiseptate) or with 1-2 seeds if latiseptate
16
15. Fruit 2-40 times longer than wide, the fruit septa perpendicular to the gynophore or pedicel (latiseptate) and with >2 seeds
18
16. Fruit obdeltoid to obcordate and acute towards the base
16. Fruit generally rounded or bi-orbicular
17
17. Cauline leaves petiolate and unlobed
17. Cauline leaves sessile or pinnate to pinnatisect
18
18. Fruit 1-6 mm long, with 1 seed per locule
18. Fruit 6-20 mm long, with >1 seed per locule
19. Leaves simple, entire to dentate
20
19. At least some leaves pinnatifid, lobate (sometimes obscurely), or dissected
23
20. Trichomes simple or absent; fruit 4-10 cm long
20. Trichomes cruciform or stellate with 2-8 rays; fruit 0.2-4 cm long
21
21. Herb to 150 cm tall; fruit cylindric, 1-4 cm long
21. Herb to 40 cm tall; fruit flattened, 0.2-1.6 cm long
22
22. Leaf blade surfaces with cruciform trichomes; petals 2-3 mm long; fruit 2-6 mm long
22. Leaf blade surfaces with simple and 2-7-rayed trichomes; petals 3.5-4 mm long; fruit 5-15 mm long
23. Trichomes dendritic
23. Trichomes simple or absent
24
24. Fruit truncate at tip, scarcely if at all tapered
24. Fruit tapered at tip (sometimes abruptly) to a persistent style base
11
25. Fruit flattened
26
25. Fruit cylindric or roughly so
27
26. Fruit valves dehiscing elastically, replum flattened; seeds not winged
26. Fruit valves not dehiscing elastically, replum rounded; seeds winged
27. Pedicel 5-17(24) mm long; petals white; fruit (0.6)1-3 cm long
27. Pedicel 1-15 mm long; petals absent, white, or yellow; fruit 0.4-1.4(2.1) cm long